#include<stdio.h>
int a(int n);
int main()
{
    int i,j,t,k,s;
    printf("Following are palindrome primes not greater than 1000:\n");
    for(i=0;i<=9;i++)
        for(j=0;j<=9;j++)
            for(k=0;k<=9;k++)
            {
                s=i*100+j*10+k;
                t=k*100+j*10+i;
                if(i==0&&j==0) t/=100;
                else if(i==0) t/=10;
                if(s>10&&s==t&&a(s))
                printf("%d\t",s);
            }    
}

int a(int n)
{
    int i;
    for(i=2;i<=(n-1)/2;i++)
        if(n%i==0) return(0);
        return(1);
}